9V Battery Clip
Use a 9V battery clip to easily connect your 9V battery to your Arduino. Use one with leads to connect your battery directly to a breadboard or the Vin pin on the Arduino. You can also buy a clip with a barrel jack for plugging directly into the Arduino.
Analog Timer Relay H3BA-8 220V
2 Pin Crimp Shell Wire | Straight Connector PAIR 



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